Kominek, Zygfryd, and Marek Kuczma. “Theorem of Bernstein-Doetsh in Baire Spaces”. Annales Mathematicae Silesianae 5 (September 30, 1991): 10–17. Accessed May 7, 2025. https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/14276.